/Engine/Source/Runtime/Engine/Classes/Animation/AnimSequence.h
Get Bone Transform of the Time given, relative to Parent for all RequiredBones This returns different transform based on additive or not. Or what kind of additive.
void GetBonePose ( struct [FAnimationPoseData](API\Runtime\Engine\Animation\FAnimationPoseData) & OutAnimationPoseData, const [FAnimExtractContext](API\Runtime\Engine\Animation\FAnimExtractContext) & ExtractionContext, bool bForceUseRawData ) const